Reeflo Barracuda / Hammerhead Hybrid Water Pump. Hammerhead HYBRID includes both Hammerhead and Barracuda impellers. By simply changing impellers you can increase or lower pump's output. Reeflo Pumps, the leading manufacturer of efficient pumps for the water garden industry for over 25 years, introduces its Reeflo product line dedicated to aquarium and marine applications. With a combination of energy efficient motors, heavy duty silicon carbide seals, stainless steel fasteners, and UV resistant translucent PVC housing, you can confidently choose the REEFLO product line for your aquarium needs. The Hammerhead is the most powerful pump in its class. This energy efficient pump is ideal for 300-500 gallon aquariums with sump return systems requiring a minimum of 15 feet static head. This unit is rated for a maximum flow rate of 5800gph, a shut off head of 23 feet and maximum wattage of 350/ 3 amps. Using a 1/3 horsepower motor. - Less than half the watt draw of comparable submersible pumps - Ports are 1.5" FNPT suction and 1.5" FNPT discharge or 2" Slip on both. - Units are pre-wired with an 8' cord and molded 115V plug. - Housing is molded of glass reinforced polyprophelene - Rebuildable motors - 3 year manufacturer's warranty.